247183242197 has 2 divisors, whose sum is σ = 247183242198. Its totient is φ = 247183242196.

The previous prime is 247183242161. The next prime is 247183242367. The reversal of 247183242197 is 791242381742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 138730921156 + 108452321041 = 372466^2 + 329321^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-247183242197 is a prime.

It is a super-2 number, since 2×247183242197² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247183242157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123591621098 + 123591621099.

It is an arithmetic number, because the mean of its divisors is an integer number (123591621099).

Almost surely, 2^247183242197 is an apocalyptic number.

It is an amenable number.

247183242197 is a deficient number, since it is larger than the sum of its proper divisors (1).

247183242197 is an equidigital number, since it uses as much as digits as its factorization.

247183242197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 50.

The spelling of 247183242197 in words is "two hundred forty-seven billion, one hundred eighty-three million, two hundred forty-two thousand, one hundred ninety-seven".